Get ready to go back in time for a retro "Supernatural," as Tuesday (Oct. 29) night's all-new episode gets Oz-some.When the Winchesters accidentally free the Wicked Witch of Oz and Dorothy from an enchanted wall in the Men of Letters bunker, they -- along with returning fan-favorite guest star Felicia Day as hacker Charlie -- must battle the Wicked Witch before she destroys their new home."Supernatural" star Jared Padalecki got into the retro theme by sharing an alternate title card for the episode on Twitter on Monday (Oct. 28). "Here it is! Tomorrows trailer with an "alternate title" and a shout out to the fans :) who sees it?! #SpnFamily," Padalecki tweeted along with the video (which incidentally broke the website he shared it on due to an overwhelming amount of traffic).The video held a hidden message for the fans in the bottom left corner, which reads: "This is for the SPNFamily, whose dedication...